WALKERSVILLE, Md. (WJZ) – Maryland State Police have developed a link between two sexual assaults at Walkersville Community Park in Frederick County. Investigators also believe they have a witness.

The most recent assault that occurred on April 6 has similarities to an assault at the same park on Nov. 10 of last year.

The November attack occurred on a Sunday around noon. The victim, a 57-year-old woman, was walking through the community park with her 3-year-old grandson when she was attacked from behind by the suspect. She was able to fight off her attacker and escape.

State police investigators have also developed a description of a potential witness to the most recent assault. During multiple interviews, people in the area have placed a young adult African-American male riding a black bike in the area of the park at the time of the April 6 attack.

He is also known to ride throughout the Walkersville area. Investigators would like to identify and speak with this person. It is believed he has information vital to this case.

The victim in the earlier incident has been contacted and confirms a similar description of the suspect. He is still described as a young, adult African-American male about 5’6” to 5’ 8” tall, 150 pounds, with a thin build. He has a dark complexion with a very short, even-cut hair style and little to no facial hair. At the time of the assault, he was wearing light khaki cargo shorts, with a long-sleeved gray shirt with black block-style lettering on it.

If you have any information on the man riding the bike, the suspect or the assaults, call 301-600-4150or 443-463-2164. Callers may remain anonymous.